Exercise algebra.equations.linear.balance
Description
Solve a linear equation using only balance rules.
Derivation
![](http://ideas.cs.uu.nl/images/external.png)
-x == 10-6*x-6
⇒ algebra.equations.linear.balance.collect-x == 4-6*x
⇒ algebra.equations.linear.balance.var-left-plus, term=6*x5*x == 4
⇒ algebra.equations.linear.balance.scale-to-one, factor=5x == 4/5